2016 Toyota Sienna Problems & Owner Complaints

Structure 26 1 crash 4 injury

“RIGHT SIDE PASSENGER DOOR, OPENED BY ITSELF WHILE DRIVING. MY JIDS WERE SEATED ON THE BACK WITH GRANDMA. DOOR ALSO, CLOSES BY ITSELF HURTING THE PASSENGER WHO IS TRYING TO GET INTO. IT HURT SEVERAL TIMES MY 8YR OLD DAUGHTER, MY 11 YR OLD BOY AND GRANDMA. EVEN CLOSES WHEN YOU ARE PUTTING STUFF IN THE PASSENGER SIDE.”
NHTSA complaint #11000200, 2016 · 3 injury(ies)

“The rear sliding power door on the passenger side closed on my six year old child. He was trapped in the door and could not move until I opened the door. He has pain and visible injuries on his back from the door. This happened on 2.10.23. There have not been any incidents with the van leading up to this incident. This happened when the van was parked in the garage and the engine was off. We have not tried to replicate the incident because it caused an injury. The vehicle is available for inspection.”
NHTSA complaint #11506720, 2023 · 1 injury(ies)

“ON JUNE 6, 2019 AT APPROXIMATELY 6 PM MY VEHICLE EXPERIENCED UNINTENDED ACCELERATION. I WAS DRIVING AT 15 MPH AND IT ACCELERATED TO 40-50 MPH. BRAKING DID NOT SLOW DOWN THE VEHICLE. I JUMPED THE CURB AND HIT THREE SMALL TREES. IT CAME TO A HALT AFTER UNDERCARRIAGE DAMAGE HAD BEEN SUSTAINED. IT WAS TOWED TO CUMMINGS MOBILITY WHERE I PURCHASED THE VEHICLE. THEY COULD NOT DETERMINED WHAT CAUSED THE UNINTENDED ACCELERATION.”
NHTSA complaint #11228525, 2019 · crash

Unknown Or Other 14 1 crash

“THE VANS THAT HAVE BEEN CONVERTED TO A HANDICAP/MOBILITY VAN ARE UNSAFE FOR OTHERS TO DRIVE ONCE THE DRIVER SEAT HAS BEEN REMOVED. I HAVE CONTACTED THE LOCAL COMPANY RESPONSIBLE FOR THE CONVERSION, AND THEY TOLD ME TO SIT ON A DINNING ROOM CHAIR OR A BUCKET. THAT IS DEFINITELY NOT A SAFE OPTION WHEN A NON HANDICAP PERSON NEEDS TO MOVE OR DRIVE THE VAN. I BELIEVE THERE NEEDS TO BE A SEAT MADE THAT CAN CLIP INTO THE WHEEL CHAIR CLAMPS THAT THE HANDICAP DRIVER USES.”
NHTSA complaint #10865182, 2016 · crash

“What component or system failed or malfunctioned, and is it available for inspection upon request? The engine/transmission and the vehicle is available for inspection upon request. How was your safety or the safety of others put at risk? While driving the vehicle at the rate of 55-60 mph, the vehicle came to a complete/instant stop without warning — potential causing harm or even death to the occupants of the associated vehicle, and it adversely affected my ability to safely control the vehicle. Also, as the incident was occurring, my drivers seatbelt became very, very tight. Has the vehic…”
NHTSA complaint #11509231, 2023

“I was driving my 2016 Sienna 30 mph, when suddenly, the rear driver's side window exploded. The police came and inspected the incident, the surroundings and the vehicle, and determined that there was no object or strike to cause the explosion. There were no warnings or lamps. There was no pressure change such as a window or door opening to cause the explosion. Should the glass have imploded, we would be having a very different conversation, as my two children were in the vehicle with me. The safety of my two children was at risk due to the glass exploding. We called our local Toyota dealer, an…”
NHTSA complaint #11439744, 2021

Electrical System 9 1 fire

“OUR 2016 TOYOTA SIENNA SPONTANEOUSLY CAUGHT FIRE WHILE PARKED IN OUR DRIVEWAY AFTER RETURNING FROM A SHORT DRIVE. AFTER PULLING INTO OUR DRIVEWAY AND SHUTTING OFF THE IGNITION, MY WIFE SMELLED SMOKE AS SHE WAS EXITING THE PARKED VEHICLE. THIS SMOKE INTENSIFIED AND QUICKLY ACCELERATED BECOMING AN ENGINE COMPARTMENT FIRE. SHE CALLED FOR ME & THEN CALLED 911; BUT IN THE BRIEF MOMENTS IT TOOK ME TO GRAB A FIRE EXTINGUISHER, THE FIRE FURTHER INTENSIFIED WITH SIZABLE FLAMES ERUPTING OUT FROM AROUND THE HOOD, FRONT GRILL & UNDERNEATH THE VEHICLE. I USED UP 2 FIRE EXTINGUISHERS WITHOUT ANY SIGNIFIC…”
NHTSA complaint #11288762, 2019 · fire

“WHEELS/ TIRES: NEEDED TO REPLACE TIRES AFTER 10,000 MILES ON NORMAL HIGHWAY DRIVING CONDITIONS ELECTRICAL: VEHICLE CONTINUES TO BLOW/POP FUSES WHEN AN ELECTRONIC DEVICE IS PLUGGED INTO THE 12V DC POWER SUPPLY PORT LOCATED UNDER THE RADIO”
NHTSA complaint #11173021, 2018

“TL* THE CONTACT OWNS A 2016 TOYOTA SIENNA. THE CONTACT STATED THAT WHILE STOPPED WITH THE ENGINE STILL RUNNING, THE PASSENGER'S SIDE SLIDING DOOR SLID OPEN INDEPENDENTLY WITHOUT WARNING. THE VEHICLE WAS TAKEN TO AUBURN TOYOTA (800 NEVADA ST, AUBURN, CA 95603) AND REPAIRED UNDER NHTSA CAMPAIGN NUMBER: 16V858000 (STRUCTURE). APPROXIMATELY TWO YEARS LATER, THE FAILURE HAD RECURRED WHILE THE ENGINE WAS TURNED OFF. THE VEHICLE WAS TAKEN BACK TO THE SAME DEALER ON TWO SEPARATE OCCASIONS WHERE THE MECHANIC WAS UNABLE TO DUPLICATE THE FAILURE. THE MANUFACTURER WAS ALSO NOTIFIED OF THE FAILURE AND A CA…”
NHTSA complaint #11339817, 2017

Seat Belts 6 3 injury

“RIGHT SIDE PASSENGER DOOR, OPENED BY ITSELF WHILE DRIVING. MY JIDS WERE SEATED ON THE BACK WITH GRANDMA. DOOR ALSO, CLOSES BY ITSELF HURTING THE PASSENGER WHO IS TRYING TO GET INTO. IT HURT SEVERAL TIMES MY 8YR OLD DAUGHTER, MY 11 YR OLD BOY AND GRANDMA. EVEN CLOSES WHEN YOU ARE PUTTING STUFF IN THE PASSENGER SIDE.”
NHTSA complaint #11000200, 2016 · 3 injury(ies)

“What component or system failed or malfunctioned, and is it available for inspection upon request? The engine/transmission and the vehicle is available for inspection upon request. How was your safety or the safety of others put at risk? While driving the vehicle at the rate of 55-60 mph, the vehicle came to a complete/instant stop without warning — potential causing harm or even death to the occupants of the associated vehicle, and it adversely affected my ability to safely control the vehicle. Also, as the incident was occurring, my drivers seatbelt became very, very tight. Has the vehic…”
NHTSA complaint #11509231, 2023

“WHILE BUCKLING UP ON 6 DEC 2019, THE SEAT ATTACHMENT TO THE B-PILLAR COMPLETELY, WITHOUT RESISTANCE, DETACHED. THE BOLT THAT SECURED THE BELT WAS ON THE FLOOR, COMPLETELY PRISTINE IN APPEARANCE, UNDAMAGED, WITHOUT ANY EVIDENCE OF THREAD-LOCKER APPLICATION AT THE FACTORY. THE CAR HAD BEEN IN NO ACCIDENTS AND WAS IN EXCELLENT SHAPE, WITHOUT A TRACE OF BODY RUST OR DETERIORATION. DEALER REPLACED THE BOLT AND CHECKED THE OTHER BELT ANCHORING BOLTS AND SAID THEY WERE OKL. HAD TO RETURN TO THE DEALER IN TWO DAYS SINCE THEIR REPAIR HAD LEFT THE SEAT BELT TWISTED. THEY UNBOLTED, THEN RE-BOLTED TH…”
NHTSA complaint #11312097, 2019

Air Bags 5 3 crash 2 injury

“I HAD CAR ACCIDENT TODAY AND GOT HI MY LEFT FRONT WND REALLY GOOD AND THE POLICE SEEN MY CAR'S AIR BAG DID NOT GO OFF-IT DIDN'T SHOWS UP.MY FACE GOT HITTED BY STEERING WHEEL.I WAS DRIVING ON CITY OF PUYALLUP WASHINGTON RUNNING 25-35MILES AN HOUR WHEN THE VEHICLE BEHIND ME TOOK OVER IN FRONT OF ME TO CHANGE LANE TO THE LEFT.IT WAS A BIG IMPACT TO MAKE ME TURNED AND BOUNCED AWAY TO RIGHT SIDE.”
NHTSA complaint #11156694, 2018 · crash · 1 injury(ies)

“TL* THE CONTACT OWNS A 2016 TOYOTA SIENNA. WHILE DRIVING APPROXIMATELY 65 MPH, THE CONTACT LOST CONTROL OF THE STEERING WHEEL. THE CONTACT WAS NOT ABLE TO STOP THE VEHICLE AND THE ELECTRONIC BRAKE WARNING INDICATOR ILLUMINATED. THE CONTACT CRASHED INTO A ROAD SIGN. THE AIR BAGS DID NOT DEPLOY. A POLICE REPORT WAS FILED. THERE WERE MINOR INJURIES THAT DID NOT REQUIRE MEDICAL ATTENTION. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC, BUT WAS NOT DIAGNOSED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VIN WAS UNKNOWN. THE APPROXIMATE FAILURE MILEAGE WAS 9,000.”
NHTSA complaint #10910205, 2016 · crash · 1 injury(ies)

“A deer was struck on the driver to middle of the front of the van while traveling 75 mph on the highway. Caused significant enough damage that van was inoperable. What was concerning was the airbags did not deploy despite the significant force and high speed associated with this accident.”
NHTSA complaint #11527575, 2023 · crash

Wheels 5

“EXCESSIVE TIRE WEAR ON THE OUTSIDE OF THE FRONT WHEELS AFTER 20,000 MILES. MINIVAN IS DRIVEN IN NORMAL CITY AND HIGHWAY DRIVING. TIRES ARE ROTATED EVERY 5,000 MILES. ALL 4 TIRES WILL NEED TO BE REPLACED AFTER 20,000 MILES.”
NHTSA complaint #11344026, 2020

“WHEELS/ TIRES: NEEDED TO REPLACE TIRES AFTER 10,000 MILES ON NORMAL HIGHWAY DRIVING CONDITIONS ELECTRICAL: VEHICLE CONTINUES TO BLOW/POP FUSES WHEN AN ELECTRONIC DEVICE IS PLUGGED INTO THE 12V DC POWER SUPPLY PORT LOCATED UNDER THE RADIO”
NHTSA complaint #11173021, 2018

“VEHICLE IS 1.5 YEARS OLD, ABOUT 20K MILES, AND JUST RECEIVED WORD THAT WE'LL NEED 4 NEW TIRES @ $300/EA BECAUSE OUTSIDE WEARING IS OCCURRING. DEALER NOR MICHELIN TAKING RESPONSIBILITY OR WARRANTY, BOTH POINTING AT EACH OTHER FOR THE ISSUE. THIS APPEARS TO BE AN ONGOING ISSUE WITH THIS VEHICLE - WAS NOT DISCLOSED BEFORE PURCHASING THE SIENNA THAT TIRES WOULD ONLY LAST 20K MILES ON THIS VEHICLE.”
NHTSA complaint #11061607, 2018

Engine 4 1 fire

“OUR 2016 TOYOTA SIENNA SPONTANEOUSLY CAUGHT FIRE WHILE PARKED IN OUR DRIVEWAY AFTER RETURNING FROM A SHORT DRIVE. AFTER PULLING INTO OUR DRIVEWAY AND SHUTTING OFF THE IGNITION, MY WIFE SMELLED SMOKE AS SHE WAS EXITING THE PARKED VEHICLE. THIS SMOKE INTENSIFIED AND QUICKLY ACCELERATED BECOMING AN ENGINE COMPARTMENT FIRE. SHE CALLED FOR ME & THEN CALLED 911; BUT IN THE BRIEF MOMENTS IT TOOK ME TO GRAB A FIRE EXTINGUISHER, THE FIRE FURTHER INTENSIFIED WITH SIZABLE FLAMES ERUPTING OUT FROM AROUND THE HOOD, FRONT GRILL & UNDERNEATH THE VEHICLE. I USED UP 2 FIRE EXTINGUISHERS WITHOUT ANY SIGNIFIC…”
NHTSA complaint #11288762, 2019 · fire

“What component or system failed or malfunctioned, and is it available for inspection upon request? The engine/transmission and the vehicle is available for inspection upon request. How was your safety or the safety of others put at risk? While driving the vehicle at the rate of 55-60 mph, the vehicle came to a complete/instant stop without warning — potential causing harm or even death to the occupants of the associated vehicle, and it adversely affected my ability to safely control the vehicle. Also, as the incident was occurring, my drivers seatbelt became very, very tight. Has the vehic…”
NHTSA complaint #11509231, 2023

“MY 2016 TOYOTA SIENNA THAT HAS 16,000 MILES WAS PARKED AT HOME AND I WENT TO GO START IT AND IT STALLED. THE CAR WAS TOWED TO HENDRICK TOYOTA OF APEX, NC AND THEY TOLD ME THAT RODENTS CHEWED THREW THE WIRING AND IT WAS NOT COVERED BY MY WARRANTY. I HAVE COMPLAINED TO BOTH THE DEALERSHIP AND TO TOYOTA. I HAVE HAD ANOTHER TOYOTA PARKED IN WITHIN THE SAME PROXIMITY FOR OVER 15 YEARS. I HAVE NEVER HAD RODENT ISSUES WITH IT. I AM CONCERNED FOR THE SAFETY OF MY FAMILY. IIF THERE ARE MICE LIVING INSIDE THE CAR, THEY COULD BE LEAVING RAT DROPPINGS THAT COULD BE HARMFUL TO BOTH OF THEM. I AM ANGRY AND…”
NHTSA complaint #11090440, 2017

Exterior Lighting 4

“THE DASH BOARD LIGHTS AND ALL INTERIOR LIGHTS CONTINUE TO GO OUT WITH OUT WARNING. IT REQUIRES STOPPING THE VAN SHUTTING IT OFF AND RESTARTING IT. THE HEADLAMP DIM THEMSELVES AND THEN BRIGHTEN WHILE DRIVING. TOOK IT TO DEALERSHIP TWICE NOW FOR ISSUE. DEALER STATED SINCE PROBLEM WAS NOT OCCURRING AT THAT MOMENT THERE IS NO TEST THEY COULD DO. SERVICE MANAGER ALSO STATED THAT TOYOTA DOESN'T LIKE THE DEALERSHIPS TRYING TO GUESS AT WHAT MAYBE WRONG. THIS IS A MAJOR SAFETY ISSUE WHEN DRIVING AT NIGHT.”
NHTSA complaint #10955462, 2017

“WHEN THE HEADLIGHTS ARE OFF, THE DASHBOARD INSTRUMENTS (SPEEDOMETER) ARE VERY DIFFICULT TO SEEN WHEN OVERCAST OUTSIDE (NO BACK-LIGHTING). THIS IS OUR 3RD SIENNA AND WAS NOT AN ISSUE WITH PAST MODELS (2011 & 2013). THIS IS A SAFETY ISSUE IN THE IT REQUIRE EYES OFF THE ROAD LONGER THAN NECESSARY IN ORDER TO READY THE INSTRUMENTS.”
NHTSA complaint #11051549, 2016

“2016 TOYOTA SIENNA DASH HEAD DISPLAY, RADIO GO OUT. WHEN THIS HAPPENS HEADLAMPS GO DIM TO POINT WHERE YOU CAN BARLEY SEE AND HAVE TO STOP THE VEHICLE. TOOK THIS IN TO LOCAL DEALERSHIP SEVERAL TIMES THEY STATED THAT UNTIL IT WAS HAPPENING IN THEIR PRESENCE THERE WAS NOTHING THEY COULD DO. WE WERE ABLE TO VIDEO RECORD THE ISSUE AND SHOWED DEALERSHIP. THEY REPLACED THE RADIO HEAD BUT ISSUE STILL OCCURS. ALSO HAVE PROBLEM WITH RECALL ON SLIDING DOOR. DEALER STATED THAT TOYOTA WAS STILL LOOKING FOR A FIX. I HAVE HAD DOOR OPEN AND CLOSE ON MY YOUNG CHILDREN WITHOUT NOTICE. HAVE THE POWER TURNED OFF…”
NHTSA complaint #11005304, 2016

Latches/Locks/Linkages 4

“The contact owns a 2016 Toyota Sienna. The contact stated the driver-side sliding door latch failed to latch as intended. The contact stated that after several attempts, the sliding door failed to close completely. The contact stated that no warning light was illuminated. The vehicle was taken to an independent mechanic but was not diagnosed. However, an unknown part was repaired. The contact stated that the failure persisted. The contact removed the button under the sliding door to manually close the door. The manufacturer was not notified of the failure. The contact related the failure to NH…”
NHTSA complaint #11640664, 2024

“The contact owns a 2016 Toyota Sienna. The contact stated that the driver’s side electric sliding door failed to properly open and close, and occasionally abruptly closed, causing a safety hazard to the occupants entering and exiting the vehicle. The cause of the failure has not yet been determined. The local dealer and manufacturer were notified of the failure, but no assistance was offered. The contact stated that the vehicle was previously repaired under NHTSA Campaign Number: 16V858000 (STRUCTURE). The contact stated that the vehicle had experienced the failure listed in the recall. The fa…”
NHTSA complaint #11656702, 2016

“TL* THE CONTACT OWNS A 2016 TOYOTA SIENNA. WHILE DRIVING 70 MPH, THE DRIVER'S SEAT BELT FRACTURED WITHOUT WARNING. IN ADDITION, WHILE DRIVING VARIOUS LOW SPEEDS, BOTH SLIDING DOORS OPENED ON MORE THAN ONE OCCASION. THE CONTACT STATED THAT THE REAR PASSENGER SLIDING DOOR OPENED MOSTLY WHILE DRIVING. THE VEHICLE WAS TAKEN TO AN UNKNOWN TOYOTA DEALER IN WALNUT CREEK, CALIFORNIA TO BE REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE FAILURE MILEAGE WAS APPROXIMATELY 100.”
NHTSA complaint #11034095, 2016

Steering 4 3 crash 1 injury

“TL* THE CONTACT OWNS A 2016 TOYOTA SIENNA. WHILE DRIVING APPROXIMATELY 65 MPH, THE CONTACT LOST CONTROL OF THE STEERING WHEEL. THE CONTACT WAS NOT ABLE TO STOP THE VEHICLE AND THE ELECTRONIC BRAKE WARNING INDICATOR ILLUMINATED. THE CONTACT CRASHED INTO A ROAD SIGN. THE AIR BAGS DID NOT DEPLOY. A POLICE REPORT WAS FILED. THERE WERE MINOR INJURIES THAT DID NOT REQUIRE MEDICAL ATTENTION. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC, BUT WAS NOT DIAGNOSED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VIN WAS UNKNOWN. THE APPROXIMATE FAILURE MILEAGE WAS 9,000.”
NHTSA complaint #10910205, 2016 · crash · 1 injury(ies)

“TL* THE CONTACT OWNED A 2016 TOYOTA SIENNA. THE CONTACT STATED THAT WHILE DRIVING AT 60 MPH, THE STEERING WHEEL STIFFENED, WHICH RESULTED IN HER CRASHING THE VEHICLE INTO THE HIGHWAY SIDE BARRIER AND A FENCE STOPPED THE VEHICLE FROM GOING INTO THE WATER. THE CONTACT DID NOT SEEK MEDICAL ATTENTION AND A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED AND DEEMED TOTALED BY THE INSURANCE COMPANY. THE MANUFACTURER WAS INFORMED OF THE FAILURE AND PERFORMED AN INVESTIGATION. THE MANUFACTURER INFORMED THE CONTACT THAT FROM THE INSPECTION, THE EDR RECORDED VARIOUS STEERING INPUT PRIOR TO THE IMPACT, HO…”
NHTSA complaint #11403888, 2018 · crash

“TL* THE CONTACT OWNED A 2016 TOYOTA SIENNA. WHILE DRIVING 65 MPH, THE STEERING WHEEL SEIZED AND THE VEHICLE CRASHED INTO A CEMENT BARRIER ON THE DRIVER SIDE WITHOUT WARNING. THE AIR BAGS DEPLOYED. THERE WERE NO INJURIES AND A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO A TOW LOT WHERE IT WAS DEEMED A TOTAL LOSS. THE VEHICLE WAS NOT TAKEN TO A DEALER TO BE DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 23,000.”
NHTSA complaint #11112775, 2018 · crash

Power Train 3

“After 80,000 miles have a loud whirling sound coming from rear, after inspection and online investigation found many many others with same issue, the dust cover and or o-ring doesn’t properly protect the rear bearing in the coupler. So while the fix is to remove the rear differential coupler, and replace the bearing with an improved version, seems Toyota has stopped supporting this, and no longer offers the improved bearing as a replacement part, but only supports replacing the entire rear differential coupling at $2000 for the part plus labor. While many have replaced the bearing without issu…”
NHTSA complaint #11571331, 2023

“TL* THE CONTACT OWNS A 2016 TOYOTA SIENNA. THE CONTACT RECEIVED A NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 16V585000 (POWER TRAIN); HOWEVER, THE PART TO DO THE REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTACT CALLED AUTONATION TOYOTA ARAPAHOE AT 303-578-6111 AND WAS INFORMED THAT SHE WOULD RECEIVE A CALL BACK WHEN THE PARTS ARRIVE. THE MANUFACTURER WAS NOTIFIED AND INFORMED THE CONTACT TO CALL THE DEALER. THE CONTACT MENTIONED THAT THE DRIVER'S DOOR FAILED TO OPEN COMPLETELY. THE VEHICLE WAS NOT REPAIRED. THE…”
NHTSA complaint #11046959, 2017

“IN COLD TEMPERATURES, THIS VEHICLE MODEL (ACCORDING TO THE DEALER) DOES NOT SHIFT INTO OVERDRIVE RIGHT AWAY WHEN DRIVING FROM A COLD-START. THIS CAUSING A MOMENTARY ACCELERATION WHEN BRAKING AND PRESENTS AN UNEXPECTED SAFETY ISSUE. I HAVE FOUND THIS ISSUE POSTED ON SEVERAL CAR FORUMS AND IT APPEARS TO AFFECT MORE THAN JUST THE 2016 MODEL SIENNA, BUT DOES NOT TRIGGER A FAULT OF ANY KIND. *TR”
NHTSA complaint #10939478, 2016

Visibility/Wiper 3

“SUNROOF GLASS EXPLODED ON ME AND MY KIDS ON MID MORNING OF 5/9/2019. NO OTHER DAMAGE TO VEHICLE. THE TEMPERATURE WAS AROUND 85 DEGREES. THE GLASS IS SHATTERED WITH NO WAY OF UTILIZING THE SUNROOF AT THIS TIME. THE VEHICLE WAS STATIONARY AT THE TIME OF THE INCIDENT.”
NHTSA complaint #11206621, 2019

“THIS NEW TOYOTA SIENNA 2016 WAS DELIVERED WITH A DEFECTIVE FRONT WINDSHIELD WITH DISTORTION AT THE CENTER BOTTOM. IT CAUSES THE ROAD MARKINGS TO BECOME WAVY AND DISTORTED, AND IS DANGEROUSLY DISTRACTING ESPECIALLY AT NIGHT OR IN LOW LIGHT SITUATIONS. THE DEALER WAS IMMEDIATELY NOTIFIED, AND CHECKED OTHER SIENNAS ON THE LOT, ALL OF WHICH HAVE THE SAME DEFECT. THE DEALER DIRECTED US TO TOYOTA, AND TOYOTA FAILED TO RESPOND AND DID NOT CORRECT THE ISSUE.SINCE IT IS APPARENTLY A VEHICLE WIDE DEFECT, IT SEEMS A RECALL WOULD BE REQUIRED TO ADDRESS THE ISSUE.”
NHTSA complaint #10935875, 2016

“BOUGHT THE CAR, NEW, A LITTLE OVER A MONTH AGO. 3 MILES ON THE ODOMETER AT THE TIME OF PURCHASE. HAVE DRIVEN THE CAR UNDER 800 MILES. CAR HAS BEEN COVERED, IN OUR DRIVEWAY, SINCE MAY 20TH. CAME OUT YESTERDAY (MAY 30TH) TO MOVE IT. UNCOVERED IT AND FOUND THE CRACK ALONG THE LOWER SECTION OF THE WINDSHIELD. IT WAS NOT THERE WHEN I COVERED IT ON THE 20TH. THERE IS NO EVIDENCE OF "CHIP OR DAMAGE" JUST THE CRACK (WHICH WAS NOT THERE WHEN THE CAR WAS COVERED). CAR WAS STATIONARY, IN OUR DRIVEWAY ON A PRIVATE, GATED STREET, COVERED. CONCERNED THAT THERE IS A FAULTY DESIGN ISSUE AND THAT WILL…”
NHTSA complaint #10871565, 2016

Seats 2

“WITH SECOND CENTER SEAT INSTALLED (8-PASSENGER VAN), THE RECLINER COULD NEVER AUTOMATICALLY COME BACK UP WHEN PULL THE LEVER. DEALER INSPECTED IT AND DIDN'T FIND ANY ISSUE. HOWEVER, IT IS NOT NORMAL TO PULL THE LEVER AND SEAT BACK UP AT THE SAME TIME, ESPECIALLY WHEN SITTING ON THE CHAIR.”
NHTSA complaint #11001276, 2016

“THE HEADRESTS TILT SO FAR FORWARD THAT THEY CAUSE NECK PAIN, PARTICULARLY ON TRIPS OF LONGER THAN 15 MINUTES. THEY SHOULD NOT BE SO FAR FORWARD THAT ONE'S HEAD IS IN CONTACT WITH THE HEADREST AT ALL TIMES, OR IF THEY DO NEED TO BE THAT FAR FORWARD, THEY SHOULD NOT BE AT SUCH AN ANGLE AS TO PRESS THE HEAD FORWARD AND DOWN.”
NHTSA complaint #10888079, 2016

Suspension 2 1 crash

“ON JUNE 6, 2019 AT APPROXIMATELY 6 PM MY VEHICLE EXPERIENCED UNINTENDED ACCELERATION. I WAS DRIVING AT 15 MPH AND IT ACCELERATED TO 40-50 MPH. BRAKING DID NOT SLOW DOWN THE VEHICLE. I JUMPED THE CURB AND HIT THREE SMALL TREES. IT CAME TO A HALT AFTER UNDERCARRIAGE DAMAGE HAD BEEN SUSTAINED. IT WAS TOWED TO CUMMINGS MOBILITY WHERE I PURCHASED THE VEHICLE. THEY COULD NOT DETERMINED WHAT CAUSED THE UNINTENDED ACCELERATION.”
NHTSA complaint #11228525, 2019 · crash

“THERE IS SOMETHING MECHANICALLY WRONG WITH THE DESIGN OF THE SUSPENSION THAT IS CAUSING TIRES TO WEAR COMPLETELY IN 15K-20K MILES. THIS IS A KNOWN ISSUE, AND NOTHING IS BEING DONE ABOUT IT. HTTPS://WWW.CARGURUS.COM/CARS/DISCUSSION-T34192_DS548164”
NHTSA complaint #11351994, 2020

Vehicle Speed Control 2 1 crash

“ON JUNE 6, 2019 AT APPROXIMATELY 6 PM MY VEHICLE EXPERIENCED UNINTENDED ACCELERATION. I WAS DRIVING AT 15 MPH AND IT ACCELERATED TO 40-50 MPH. BRAKING DID NOT SLOW DOWN THE VEHICLE. I JUMPED THE CURB AND HIT THREE SMALL TREES. IT CAME TO A HALT AFTER UNDERCARRIAGE DAMAGE HAD BEEN SUSTAINED. IT WAS TOWED TO CUMMINGS MOBILITY WHERE I PURCHASED THE VEHICLE. THEY COULD NOT DETERMINED WHAT CAUSED THE UNINTENDED ACCELERATION.”
NHTSA complaint #11228525, 2019 · crash

“IN COLD TEMPERATURES, THIS VEHICLE MODEL (ACCORDING TO THE DEALER) DOES NOT SHIFT INTO OVERDRIVE RIGHT AWAY WHEN DRIVING FROM A COLD-START. THIS CAUSING A MOMENTARY ACCELERATION WHEN BRAKING AND PRESENTS AN UNEXPECTED SAFETY ISSUE. I HAVE FOUND THIS ISSUE POSTED ON SEVERAL CAR FORUMS AND IT APPEARS TO AFFECT MORE THAN JUST THE 2016 MODEL SIENNA, BUT DOES NOT TRIGGER A FAULT OF ANY KIND. *TR”
NHTSA complaint #10939478, 2016

Back Over Prevention 1

“TL* THE CONTACT OWNS A 2016 TOYOTA SIENNA. WHILE OPERATING THE VEHICLE, THE REARVIEW CAMERA, WHICH WAS INTEGRATED INTO THE RADIO SYSTEM, MALFUNCTIONED AND STOPPED OPERATING. THE DEALER WAS UNABLE TO DIAGNOSE THE CAUSE OF THE FAILURE. THE CAMERA/RADIO UNIT WAS REPLACED, BUT THE FAILURE CONTINUED. THE CONTACT INDICATED THAT THE CAMERA/RADIO WAS REPLACED ON FOUR SEPARATE OCCASIONS. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 100.”
NHTSA complaint #10980066, 2016

Fuel/Propulsion System 1 1 fire

“OUR 2016 TOYOTA SIENNA SPONTANEOUSLY CAUGHT FIRE WHILE PARKED IN OUR DRIVEWAY AFTER RETURNING FROM A SHORT DRIVE. AFTER PULLING INTO OUR DRIVEWAY AND SHUTTING OFF THE IGNITION, MY WIFE SMELLED SMOKE AS SHE WAS EXITING THE PARKED VEHICLE. THIS SMOKE INTENSIFIED AND QUICKLY ACCELERATED BECOMING AN ENGINE COMPARTMENT FIRE. SHE CALLED FOR ME & THEN CALLED 911; BUT IN THE BRIEF MOMENTS IT TOOK ME TO GRAB A FIRE EXTINGUISHER, THE FIRE FURTHER INTENSIFIED WITH SIZABLE FLAMES ERUPTING OUT FROM AROUND THE HOOD, FRONT GRILL & UNDERNEATH THE VEHICLE. I USED UP 2 FIRE EXTINGUISHERS WITHOUT ANY SIGNIFIC…”
NHTSA complaint #11288762, 2019 · fire

Service Brakes 1

“TL* THE CONTACT OWNS A 2016 TOYOTA SIENNA. WHILE DRIVING APPROXIMATELY 15 MPH, THE BRAKE PEDAL WAS DEPRESSED, BUT IT WAS DIFFICULT TO STOP THE VEHICLE. THE CONTACT HEARD A CLICKING NOISE AT THE TIME OF THE FAILURE. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 14,300.”
NHTSA complaint #10948674, 2017

Tires 1

“TL* THE CONTACT OWNS A 2016 TOYOTA SIENNA EQUIPPED WITH FIRESTONE FR710 TIRES, SIZE 205/65R16. WHILE THE VEHICLE WAS PARKED, THE CONTACT HEARD AN EXPLOSION. UPON INSPECTION, THE CONTACT DISCOVERED THAT THE FRONT DRIVER SIDE TIRE EXPLODED. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VIN WAS UNKNOWN. THE TIRE AND VEHICLE FAILURE MILEAGE WAS 3,750.”
NHTSA complaint #10986022, 2017